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goldenfox [79]
3 years ago
13

current Law requires that wheelchair ramps have a height to length ratio of 1: 12 and old ramp has a height to length ratio of 2

: 21 its height is 8 inches workers replace this ramp with a new one that has the same height how much longer must a new ramp be to meet the ramp ratio required by law?
Mathematics
1 answer:
deff fn [24]3 years ago
5 0
Must be 12 inches longer it was 84 inches 4x21 it needs to be 96 inches 8x12 96-84 is 12
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Write a function rule in terms of x and y for the line that contains the points (-7.4, -9.7) and ( 8.4, 6.1) .
Karo-lina-s [1.5K]

Answer:

y = x + -2.3

x = -y - 2.3 (but why would one need this?...)

Step-by-step explanation:

(6.1 - (-9.7))/(8.4 - (-7.4)) = 15.8/15.8 = 1

6.1 = 8.4 + b

b = -2.3

8 0
3 years ago
1) Gena’s new outfit originally cost $75. She received 20% off. How much did Gena’s outfit cost?
Paha777 [63]

Answer:

1. $60

2. 600 Calories were burned

3. D

Step-by-step explanation:

1. $75 x .20=$15

75-15=$60

2. What I started with is 200/40=5 calories burned per min

60 plus 60=120

5x120=600

3. It's the only option that has something decreasing. and there is a -5 which means it's getting subtracted or its decreasing.  

6 0
3 years ago
Read 2 more answers
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 9090​% of all males.​ (Accommodating 1
Molodets [167]

Answer:

Hip breadths less than or equal to 16.1 in. includes 90% of the males.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 14.5

Standard Deviation, σ = 1.2

We are given that the distribution of hip breadths is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.10.

P(X > x)  

P( X > x) = P( z > \displaystyle\frac{x - 14.5}{1.2})=0.10  

= 1 -P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.10  

=P( z \leq \displaystyle\frac{x - 14.5}{1.2})=0.90  

Calculation the value from standard normal z table, we have,  

P(z < 1.282) = 0.90

\displaystyle\frac{x - 14.5}{1.2} = 1.282\\x = 16.0384 \approx 16.1  

Hence, hip breadth of 16.1 in. separates the smallest 90​% from the largest 10%.

That is hip breaths greater than 16.1 in. lies in the larger 10%.

4 0
3 years ago
Velma must make five bottles of lemonade for the kids playing outside. Each bottle requires 3⁄4 cup of sugar. How much sugar doe
Ket [755]
The total number of cups of sugar needed will be given by:
Total amount=(number of bottles)×(number of cups of sugar per box)
number of bottles to be made is 5 bottles
number of cups per box is 3/4
thus the total number of cups required will be:
Total amount=3/4×5=3 3/4 cups
6 0
3 years ago
Last month Mrs. Hamilton bought a 4-pound bag of potatoes for $9.12. This month she purchased a 6-pound bag of potatoes for $11.
kirza4 [7]
38 cents, could be wrong tho!
6 0
3 years ago
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